Phase integral approach to wave propagation in continuously graded models of flat lenses
Само за регистроване кориснике
2017
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We propose a method to determine approximate phase-integral analytical solutions for electric and magnetic fields in flat lenses with the refractive index varying in the radial direction. In our model the gradient of refractive index is approximated by a large number of concentric annuli with step-increasing index. Here the central part contributes to a bulk of the phase transformation, while the external layers act as a graded antireflective structure, matching the impedance of the lens to that of the free space. Such lenses can be modeled as compact composites with continuous permittivity and (if needed) permeability functions which asymptotically approach unity at the boundaries of the composite cylinder. We illustrate the phase-integral approach by obtaining the approximate analytic solutions for the electric and magnetic fields for a special class of composite designs with radially graded parameters.
Кључне речи:
Flat lenses / Graded permittivity and permeability models / Transformation Optics / Phase-integral analytical solutionsИзвор:
13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers, 2017, 38-41Издавач:
- Institute of Electrical and Electronics Engineers (IEEE)
Напомена:
- Conference Location: Niš, Serbia
- Date of Conference: 18-20 Oct. 2017
DOI: 10.1109/TELSKS.2017.8246222
ISBN: 978-1-5386-1799-1
Scopus: 2-s2.0-85045988217
Институција/група
IHTMTY - CONF AU - Dalarsson, Mariana AU - Jakšić, Zoran PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3444 AB - We propose a method to determine approximate phase-integral analytical solutions for electric and magnetic fields in flat lenses with the refractive index varying in the radial direction. In our model the gradient of refractive index is approximated by a large number of concentric annuli with step-increasing index. Here the central part contributes to a bulk of the phase transformation, while the external layers act as a graded antireflective structure, matching the impedance of the lens to that of the free space. Such lenses can be modeled as compact composites with continuous permittivity and (if needed) permeability functions which asymptotically approach unity at the boundaries of the composite cylinder. We illustrate the phase-integral approach by obtaining the approximate analytic solutions for the electric and magnetic fields for a special class of composite designs with radially graded parameters. PB - Institute of Electrical and Electronics Engineers (IEEE) C3 - 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers T1 - Phase integral approach to wave propagation in continuously graded models of flat lenses SP - 38 EP - 41 DO - 10.1109/TELSKS.2017.8246222 ER -
@conference{ author = "Dalarsson, Mariana and Jakšić, Zoran", year = "2017", abstract = "We propose a method to determine approximate phase-integral analytical solutions for electric and magnetic fields in flat lenses with the refractive index varying in the radial direction. In our model the gradient of refractive index is approximated by a large number of concentric annuli with step-increasing index. Here the central part contributes to a bulk of the phase transformation, while the external layers act as a graded antireflective structure, matching the impedance of the lens to that of the free space. Such lenses can be modeled as compact composites with continuous permittivity and (if needed) permeability functions which asymptotically approach unity at the boundaries of the composite cylinder. We illustrate the phase-integral approach by obtaining the approximate analytic solutions for the electric and magnetic fields for a special class of composite designs with radially graded parameters.", publisher = "Institute of Electrical and Electronics Engineers (IEEE)", journal = "13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers", title = "Phase integral approach to wave propagation in continuously graded models of flat lenses", pages = "38-41", doi = "10.1109/TELSKS.2017.8246222" }
Dalarsson, M.,& Jakšić, Z.. (2017). Phase integral approach to wave propagation in continuously graded models of flat lenses. in 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers Institute of Electrical and Electronics Engineers (IEEE)., 38-41. https://doi.org/10.1109/TELSKS.2017.8246222
Dalarsson M, Jakšić Z. Phase integral approach to wave propagation in continuously graded models of flat lenses. in 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers. 2017;:38-41. doi:10.1109/TELSKS.2017.8246222 .
Dalarsson, Mariana, Jakšić, Zoran, "Phase integral approach to wave propagation in continuously graded models of flat lenses" in 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS) - Proceedings of Papers (2017):38-41, https://doi.org/10.1109/TELSKS.2017.8246222 . .